Electric massage-roller.



UNITED STATES PATENT OFFICE.

WILLIARD B. PRESTON, OF CHICAGO, ILLINOIS.

ELECTRIC MASSAG E-ROLLER.

SPECIFICATION forming part of Letters Patent N0. 693,063, dated February 11, 1902.

Application tiled December 4, 1901.v lSerial No. 84,656. (No model.)

- vention being to provide a simple and inexpensive device of this character which will effectually perform all the desired functions of such an instrument.

With this object in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure lis a View in elevation illustrating my improvements, and Fig. 2 is a view in section of the same.

l represents a cylindrical block of hard rubber or other non-conducting material, made with parallel and longitudinal bores for the reception of metal Shanks 2, integral with metal brackets 4 and secured therein by lateral pins 3, as shown. The outer or free ends of the brackets 4 are 'made bifurcated, or, rather, in the form of parallel arms 4a, between which are mounted to revolve on short shafts 5 metal rollers 6. These shafts 5 project slightly inward beyond the brackets and into a bearing in a roller 7, of rubber or other non-conducting material,and while they serve to revolubly support the roller 7 they are spaced apart and there is no electrical contact between them. The ends of shanks 2 project through the inner end of block l and are provided with screws S to secure the wires 9, connected u p in circuit with a suitable battery, and a cylindrical handle 10, preferably of hard rubber or other non-conducting material, incloses the block l, the inner ends of Shanks 2, and a portion of the wires 9 and is secured in position by a screw ll, passed through the handle 9 and into block l.

The operation of my improvements is as follows: The operator grasps the handle 10 and runs the rollers 6 and 7 over the portion of the body to be treated. The rollers 6 form electrodes and the electric current is cornpelled to pass through the patients body betweenV rollers 6 to make the circuit, thus subjecting the unhealthy part to the current, and the non-conducting roller 7 serves to even the pressure on the body without interfering with the proper circuit of the electric current.

Various slight changes might be resorted to in the 'general form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I would have it understood that I do not Wish to limit myself to the precise construction set forth, but consider myself at liberty to make such slight changes and alterations as-fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a massage-roller, the combination with two brackets of electricity-conducting material spaced apart, of shafts in said brackets projecting inward beyond the same and spaced apart, rollers of conducting material on said shafts in the brackets, and a roller of non-conducting material between the brackets and supported on the ends of the respective shafts.

2. In a massage-roller, the combination with a block of non-conducting material, metal brackets, shanks on the brackets supported in the block and spaced apart, electric wires connected with the respective Shanks, metal rollers carried by the brackets, a roller of nonconducting material between the brackets, and a handle of non-conducting material surrounding the block.

3. In a massage-roller, the combination with a block of non-conducting material, metal brackets having shanks secured in parallel bores of the block and spaced apart, screws in the ends of said Shanks for the attachment In testimony whereof I have signed this of electricity-conducting wires, metal rollers mounted to revolve in said brackets, a roller of non-conducting material mounted to rel vol ve between the brackets, and a cylindrical handle uelosing the block, screws and a portion of the wires and removably secured to the block.

ing witnesses.

WILLIARD B. PRESTON.

Witnesses:

MARK R. SHERMAN, JOSEPH B. BURTT.

specification in the presence 0f two subsorib- 1o 

